This is a report of my first BrikWars battle. We used a modified version of the QuickWars where each minifig's armor and weapon determined the die type to roll. This worked out really well, fast to play, but enough variation to make it interesting. My write up of the rules are here:
http://bareflix.com/brikwars/cbc.html

We had 3 players, two of which started early and did most of the building. The scenario had a castle at each end and a bridge in the middle. The third player had to defend the bridge from both sides while the attackers goal was to steal the treasure chest from the center of the bridge. We also added a building side quest that added a lot of fun. The parts for two small hand carts where scattered on each side of the bridge. If you collected them and built the cart, a single minifig could use it to move the treasure, otherwise you would need to minifigs to move it.

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Overview of the battlefield from the north

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Battlefield viewed from the south, note a few spare legos on the counter in the background

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Bridge defenders are in position

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The Dark Horde hero attempts to dive for cover and fails badly, leaving him wide open to the bowman in the gatehouse (note the bowman is holding a walkie talkie because we ran out of bows)

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Toby hiding in the reeds, blissfully unaware that behind him a comrade bleeds out into the rushing water of the river

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The bridge defenders' Hero falls early at the hands of the Red Egyptians' hero. The killing blow was so mighty that the dead hero's beard was knocked clean off!

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Another defender falls, his spine ripped from his body!

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Err? What was that? Lars looks over his shoulder to see 4 of the Dark Horde have crashed through the south gate, while the Red Pharaoh menaces them from the north. In the bottom right lies the corpse of the Dark Horde hero whose death was so shameful that it didn't even warrant a photo.

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Lars and Olaf grab the treasure and make a run for it while Sven shoots over his shoulder at the Horde with his walkie talkie, er, I mean bow.

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The Bridge Defenders' greatest fighter, surrounded by the corpses of many Red Egyptians

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The battle rages on with many troops from both sides falling. The Red Pharaoh is lost just as his lone remaining trooper tows the wagon he built toward the treasure chest. Lars and Sven are dead, leaving the chest apparently unguarded, but wait! Bud and Toby, who spent most of the battle hiding in the reeds have grabbed the biggest weapons they can find and come swooping down on the bedraggled attackers.

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The day is saved! Bud and Toby return the chest to the middle of the bridge and wonder what to do next since everyone else is dead. Sadly they eventually kill each other in a duel as they cannot agree on who gets which of the abandoned castles. Such is the way of the minifig.

I think your battlefield's great, it really inspired me. When I saw it I was expecting far more troops though and got a bit dissapointed, also because the castles didn't come into play. However your fight was good enough, my high expectations were the problem rather than anything else